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annotate src/protocol.h @ 876:b5abe85df1e7 draft

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Start moving protocol-specific code to protocol.[ch]pp Move CMessageHeader from net.h to protocol.[ch]pp, with the implementation in the .cpp compilation unit (compiling once is enough). This commit does *not* and should not modify *any* code, it only moves it from net.h and splits it across protocol.cpp and protocol.hpp. Indentation changes aside the closest thing to a modification of code is the addition of the 'TODO' comment (the execution of which requires code modifications and thus doesn't belong in this commit). Signed-off-by: Giel van Schijndel <me@mortis.eu>
author Giel van Schijndel <me@mortis.eu>
date Thu, 11 Aug 2011 18:14:53 +0200
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1 // Copyright (c) 2009-2010 Satoshi Nakamoto
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2 // Copyright (c) 2011 The Bitcoin developers
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3 // Distributed under the MIT/X11 software license, see the accompanying
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4 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
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5
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6 #ifndef __cplusplus
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7 # error This header can only be compiled as C++.
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8 #endif
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9
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10 #ifndef __INCLUDED_PROTOCOL_H__
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11 #define __INCLUDED_PROTOCOL_H__
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12
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13 #include "serialize.h"
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14 #include <string>
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15
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16 //
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17 // Message header
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18 // (4) message start
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19 // (12) command
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20 // (4) size
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21 // (4) checksum
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22
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23 extern unsigned char pchMessageStart[4];
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24
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25 class CMessageHeader
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26 {
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27 public:
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28 CMessageHeader();
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29 CMessageHeader(const char* pszCommand, unsigned int nMessageSizeIn);
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30
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31 std::string GetCommand() const;
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32 bool IsValid() const;
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33
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34 IMPLEMENT_SERIALIZE
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35 (
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36 READWRITE(FLATDATA(pchMessageStart));
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37 READWRITE(FLATDATA(pchCommand));
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38 READWRITE(nMessageSize);
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39 if (nVersion >= 209)
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40 READWRITE(nChecksum);
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41 )
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42
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43 // TODO: make private (improves encapsulation)
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44 public:
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45 enum { COMMAND_SIZE=12 };
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46 char pchMessageStart[sizeof(::pchMessageStart)];
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47 char pchCommand[COMMAND_SIZE];
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48 unsigned int nMessageSize;
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49 unsigned int nChecksum;
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50 };
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51
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52 #endif // __INCLUDED_PROTOCOL_H__